The results of the antenna have been compared both with and. These strips are connected to monopole by using graphene pads. Compact wideband rectangular monopole antenna for wireless. A cpwfed structure shaped substrate wideband microstrip. Pdf dual band monopole antenna design researchgate. Simulated antenna vswr of proposed monopole antenna. Journal of electromagnetic waves and applications, 2007, vol. A quarterwave monopole is a ground plane dependent antenna that must be fed singleended. On chip plasmonic monopole nanoantennas and circuits. Dual band monopole antenna design article pdf available in international journal of engineering and technology 53. The antennas commonly used for lmrboth at base stations and mobile unitsrepresent only a very small portion of all the antenna types. Table of contents international journal of antennas and. Full text of circular microstrip patch monopole antenna for.
A printed monopole antenna can be equated to a cylindrical monopole antenna with large effective diameter. In antenna 3, the slots have been placed in the stubs of the ground plane. The antenna is designed to work at the frequency ranges of 2. An elliptical ring is used for controlling bidirectional pattern, thus the gain can be improved. By incorporating a ushaped slot in the feedline, a bandnotch is realized in the frequency range of 7. Article pdf available in international journal of antennas and propagation 2008 january 2008. Simulated antenna efield radiation pattern of proposed monopole antenna. Antenna types antennas can be classified in several ways. Impedance of a monopole antenna with a radialwire ground. Abstractin this paper, a design of compact monopole antenna with defected ground plane for. If the ground plane is large enough, the monopole behaves exactly like a dipole because its reflection in the ground plane forms the missing half of the dipole. The proposed antenna is suitable for using in wireless capsule endoscopy wce as transmitter antenna because of its special structure. Singleended sources may be used without baluns when monopole antennas are used.
Pdf design aspects of printed monopole antennas for ultrawide. The stark spectra of samples containing p700 in reduced form exhibit a strong. Antenna theory wire antennas monopole antenna long wire or traveling wave antennas yagi uda antenna reference. Quadratic stark effect in cp1 pigmentprotein complex was examined at low temperatures in the red spectral region. The monopole antenna operates in the lower 5g band from 3 up to 7. Radiation resistance power radiated input current squared the other portions are ground loss and antenna structure loss that dissipate power as heat. The standard monopole antenna measures 14 wavelength in height.
The stark spectra of samples containing p700 in reduced form exhibit a. A printed monopole in its planar and vertical configuration has been designed, fabricated and analyzed for microwave applications on low cost fr4 substrate material of thickness, h 1. This paper presents a study of a novel monopole antenna for ultrawideband uwb applications. The design, simulations, and optimized results for a novel low specific absorption rate sar monopole antenna on a single artificial magnetic conductor amc cell are described in this paper.
Microstrip line fed printed planar monopole antenna for uwb. Reconfigurable sierpinski monopole antenna for cognitive radio applications vardhaman college of engineering abstract the changing scenario of the wireless connectivity has insisted the usage of the. Parasitically loaded cpwfed monopole antenna for broadband operation is proposed in 8. Printed on a dielectric substrate and fed by a 50 spl omega microstrip line, a planar circular disc monopole has been demonstrated to provide an ultra wide 10 db return loss bandwidth with satisfactory radiation properties. Novel monopole antenna on a single amc cell for low sar. Design of an 868 mhz printed sshape monopole antenna. Calibration of vertical monopole antennas 9khz 30mhz 49 standard field method on an open area test site an alternative to the use of striplines is to generate the standard field by means of a passive vertical monopole antenna for transmission. The proposed antenna, has the dimension of 40mm x 55mm w sub x l sub, is constructed on fr4 substrate with thickness of 1. A monopole antenna is a type of dipole antenna formed by replacing one half of the dipole antenna with the ground plane at a right angle to the remaining half.
A miniaturized cpwfed onchip uwb monopole antenna with band. A monopole antenna is a class of radio antenna consisting of a straight rodshaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. Cpwfed octagon shaped ring slot monopole antenna b t p madhav, k v vineetha, a durga sindhu, b sruthi anmisha, t balaji. Design aspects of printed monopole antennas for ultrawide band. The transmission monopole antenna, marked as txm in fig. International journal of antennas and propagation publishes research on the design, analysis, and applications of antennas, along with studies related to the propagation of electromagnetic waves through space, air, and other media. Monopole antenna ptma for ultra wideband uwb wireless. By utilizing the trapezoidal structure, a multiband coplanar monopole antenna with lp and cp operations was proposed in 4. Wlan applications, international journal of computers and electrical.
Radiation characteristics of a quarterwave monopole antenna above virtual ground. Design aspects of printed monopole antennas for ultrawide. Analogues of many radio frequency rf antenna designs such as the halfwave dipole and yagiuda have been successfully adapted to the optical frequency regime, opening the door for important advances in biosensing, photodetection, and emitter control. Psishaped ultrawideband monopole antenna with a modified. Others include physical structure and electricalelectromagnetic design. In this paper, a wideband printed polygonshaped monopole antenna has been designed using microstrip line feeding technique which provides dualnotch band characteristics 2. A new modified trident printed monopole configuration for ultra wideband applications is presented. In this study, a dualband microstripfed monopole antenna has been introduced for rfid applications. The antenna must have a ground plane to be efficient, and ideally the ground plane should spread out at least a quarter wavelength, or more, around the feedpoint of the antenna.
Design of monopole antenna vebill military 5 may 17 03. Journal of microwaves, optoelectronics and electromagnetic applications, vol. Sep 26, 2019 in this paper, a new conformal monopole antenna is presented. The wce antenna should have particular features, because it will be radiate in human body environment. Nonetheless, irrespective of the calculated lengths in table 1, the proposed sshape antenna will. A printed compact monopole antenna based on a single negative sng metamaterial is proposed for ultrawideband uwb applications. Design of ultra wideband circular patch monopole antenna. Article pdf available in international journal of engineering and technology 53. King contribution from electrical engineering dept. Nov 28, 2011 analogues of many radio frequency rf antenna designs such as the halfwave dipole and yagiuda have been successfully adapted to the optical frequency regime, opening the door for important advances in biosensing, photodetection, and emitter control. Here, only half of the dipole antenna is needed for operation. A compact dualband octagonal slotted printed monopole antenna.
The bandwidth of the proposed monopole antenna is enhanced. Compact ultrawideband monopole antenna loaded with metamaterial. Many printed dualband and uwb monopole antennas were reported for. This paper presents the design and analysis of a miniaturized, coplanar waveguidefed ultrawideband monopole onchip antenna with bandnotch characteristics. Compact wideband rectangular monopole antenna for wireless applications 241. This monopole antenna has multi resonant segments of rectangular patch with circular bottom and annular sector to form it like trident structure. The proposed sshape monopole antenna structure as per equations, normal monopole antennas to work with industrial, scientific and medical ism band of 868 mhz and 915 mhz would be presenting the length sizes according to table 1. When placed over a conducting ground plane, a quarterwave monopole antenna excited by a source at its base as shown in figure 2 exhibits the same radiation pattern in the region above the ground as a halfwave dipole in free space. Compact multiservice monopole antenna for tablet devices. Conclusion design of circular patch monopole antenna with an circular cut fabricated on the fr4 lossy substrate with modified ground plane has been investigated for above the l band frequency application. International journal of rf and microwave computeraided. Reconfigurable frequency and steerable beam of monopole.
A wideband circularly polarized printed monopole antenna with. Modified trident uwb printed monopole antenna springerlink. Basic vertical monopole radiation resistance radiation resistance rrad is that portion of the antenna input resistance that radiates power. Examples of monopole antennas, however, are conspicuously rare given the elements extensive use in rf applications. A monopole antenna usually consists of a vertical cylindrical wire mounted over the ground plane, whose bandwidth increases with increase in its diameter. Extending the bandwidth of an elliptical monopole antenna. Analysis of the effects of rectangular ground plane on. Simulated results show a reduction close to 70% in the 1 g ps sar for the developed monopole antenna with the amc in comparison to the monopole antenna. Over the past decade, radiofrequency identification rfid technology has attracted significant attention and become very popular in different applications, such as identification, management, and monitoring.
Calibration of vertical monopole antennas 9khz 30mhz. In 5, a simple printed monopole antenna having two arms with different length was also reported to introduce cp operation. Journal of modeling and simulation of antennas and. Dualnotched monopole antenna using dgs for wlan and wimax. Reconfigurable sierpinski monopole antenna for cognitive. Alternatively, printed monopole antennas can be seen as a vertical monopole antenna. By optimizing the dimensions of inner rectangular patch, outer annular sectoral structure, spacing between them and feed gap the ultra wide bandwidth. The monopole antenna is an common antenna that is often used on vehicles and other areas were a large conductive flat area is present ground plane. Study of a printed circular disc monopole antenna for uwb. Few requirements are desired for those antennas fo rtheir suitability for indoor applications. Broadband conformal monopole antenna loaded with meandered.
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